IRDMZ Iridium Communications Inc
IRDMZ was the NASDAQ ticker symbol of Iridium Communications Inc. It no longer appears in current US listing files, which usually means the security was delisted, acquired, merged, or moved to a new symbol. A company with the same name, Iridium Communications Inc, currently trades as IRDM.
IRDMZ at a glance
- Symbol
- IRDMZ
- Company / issuer
- Iridium Communications Inc
- Last exchange
- NASDAQ
- Status
- No longer listed
- Seen in listing files
- Jan 2015
IRDMZ ticker history
All listing names we have recorded under the symbol IRDMZ, from periodic snapshots of US exchange listing files.
| Name | Security | First seen | Last seen |
|---|---|---|---|
| Iridium Communications Inc | — | Jan 2015 | Jan 2015 |
Snapshots have gaps (notably 2018–2021, and 2015–2021 for NYSE listings), so the actual delisting date may be later than the last-seen date.
Other symbols for Iridium Communications Inc
Frequently asked questions
What company has the ticker symbol IRDMZ?
IRDMZ was the ticker symbol of Iridium Communications Inc on NASDAQ.
Is IRDMZ still trading?
No. IRDMZ does not appear in current US exchange listings as of Sep 2026; it was last seen in our listing snapshots in Jan 2015. The company now appears to trade as IRDM (Iridium Communications Inc).
Which exchange was IRDMZ listed on?
IRDMZ was listed on NASDAQ.